Porous carbons (PCs) with high porosity are indeed desirable
candidate for carbon dioxide capture material due to their
ingrained reversibility, fast kinetics, and high recyclability [10].
They are particularly attractive for their easier availability, light
weight and easy production [11]. However, many of the natural
and synthetic polymers are used to produce porous carbons, they
may not have all the desirable properties such as specific surface
area, pore volume, pore size, and uniformity [12–14]. The researchers
have, therefore, resorted to chemical activation (dry or impregnation)
for carbon precursors, which is a direct carbonization of
mixed carbon precursors and activating agents in the tubular furnace
under inert atmosphere of nitrogen or argon [15,16]. The pore
shape and the porosity of the prepared carbons can be controlled
by the activation type and the ratio between the activating agent
and the carbon source in addition to activation temperature
[17,18]. Activated porous carbons have been widely used in gas
adsorption or gas storage, in electronic devices such as electrodes
or capacitors, treatment of pollution in waters [19] and as a catalyst
support [20]. Moreover, to improve their properties in energy
storage, many researchers tend to use various plants residue such
as leaf, sawdust, seaweed and peel [21] as well as plant products
such as cellulose, lignin, glucose, xylose [22] and starch to prepare
carbonaceous materials with desirable nanostructure and functionalization
patterns through hydrothermal carbonization. So
far, the studies have been focused on the synthesis of high surface
area N-doped activated carbon materials derived from biomass for
CO2 adsorption. Sevilla et al. demonstrated the preparation and
characterization of highly porous N-doped carbon materials have
been synthesized from hydrothermal carbons obtained from
mixtures of algae and glucose. The high surface area N-doping
activated carbons are capable of capturing larger amounts
(7.4 mmol g1 at 0 C and 1 bar) of CO2 [23] (see Table S1).